Machine for coating the peripheral portions of soles



J. H..BR OWN 2,063,149

MACHINE FOR COATING THE PERIPHERAL PORTIONS OF SOLES Dec. 8, 1936.

2 Sheets-Sheet 1 Filed May 26, 1953 Dec. 8, 1936. J. H. BROWN 2,063,149

MACHINE FOR COAT ING THE PERIPHERAL PORTIONS OF SOLES Filed May 26, 19352 Sheets-Sheet 2 //VVE/V TUP T0222 2A Patented Dec. 8, 1936 UNITEDSTATES PATENT OFFICE MACHINE FOR COATING THE PERIPHERAL PORTIONS OFSOLES Application May 26, 1933, Serial No. 673,055 In Great Britain June9, 1932 7 Claims.

This invention relates to the application of coating material and isherein illustrated as embodied in a machine for coating the pripheralportions of soles such as the edges thereof and the 5 adjacent marginalareas, the machine being intended for use primarily with unattachedsoles.

It is sometimes found desirable to coact, as with ink, the edges andadjacent margins of shoe soles before they are incorporated in shoes as,for example, in the manufacture of McKay shoes. One object of thepresent invention is to provide an improved machine suficiently flexiblein its arrangement so that it can be employed for coating either theedge surfaces of the soles or the adjacent margins of the soles.

An important feature of the invention permits the application of coatingmaterial both to the peripheral edge of the sole and to a narrowadjacent marginal portion of the sole. When thus arranged, theillustrated machine has an applying roll of flexible material andprovided with a projecting flange which may be brought intofluid-transferring relation to a lateral surface upon a supplying roll,to effect the accumulation 25 of coating material in the corner betweenthe flange and the peripheral surface of the applying roll forapplication to the work, such as the marginal surface of a sole. Theedge of a sole is pressed against the peripheral surface and locat- 30ed in said corner thereby to coat also an adjacent marginal portion ofthe sole.

In the drawings,

Fig. 1 is an angular view showing the operating parts of a coatingmachine embodying the invention;

Figs. 2 and 3 are front elevations showing the applying roll anddifferent shapes of cooperating feed rolls for supporting the margin ofa sole in contact with the periphery of the applying roll;

Fig. 4 is a similar view showing an arrangement for coating the edge ofa sole;

Fig. 5 illustrates the applying roll in cooperation with a feed rollwhich may be shifted to occupy various positions with respect to theapplying roll;

Fig. 6 is a diagrammatic view of the ends of the various rolls togetherwith a cooperating guide and illustrating an arrangement especiallyadapted for coating the edges of soles;

Fig. 7 is a front elevation of the arrangement shown in Fig. 6, omittingsome of the supplying rolls; and

Fig. 8 is a front elevation showing an arrangement by means of whichboth the edge of the sole and a narrow adjacent marginal area may becoated simultaneously.

The illustrated machine may have the general construction of a machinefor applying coating material, such as cement, to shoe parts, which ma-5 chine is shown in Letters Patent of the United States No. 1,851,162,granted March 29, 1932, upon the application of John W. Cosgrove. Incommon with that machine there is provided herein a frame I 0'supporting a tray-like receptacle I2 in which coating liquid is kept ata constant level by means of an inverted supply bottle it. The liquid inthe receptacle is taken up by a pick-up roll I 6 from which it isremoved by means of a transfer roll l8 and given over to a deliveringroll 20 which, in all the forms of the invention except that shown inFig. 8, is also used for applying the coating material directly to thework. Cooperating with this applying roll 20 is a feed roll 22 or 52,the latter being shown in Fig. l. 20 The rolls l6, l8 and 20 are mountedupon shafts journaled in the frame I ll upon centers fixed with respectto one another, and the rolls are positively driven, all in the samedirection as indicated by the arrows applied to the rolls, at suchspeeds that the adjacent peripheries move at substantially equal linearvelocities. The separation between these rolls, greatly exaggerated inthe drawings, is normally only a few thousandths of an inch. Thequantity of coating material taken up by the pick up roll is controlledby means of a driven doctor roll 24, the peripheral speed of which isslower than that of the roll [6 and the position of which with respectto the pick-up roll is controlled by a wing nut 26, as in the Cosgrovepatent. Also, as in that patent, the feed roll is mounted in a pivotedbracket 21 which usually will be urged by a spring (not shown) to causethe feed roll to approach the applying roll 20 to a position determinedby a stop bolt 28, the position of which may be adjusted by means of ahand wheel 30. Also in the Cosgrove patent, the efiect of driving therolls in the same direction and with the same peripheral speeds is tocause the applying or delivering roll 20 to be supplied continuouslywith an even coating of ink which does not, however, tend to accumulateunduly when no work is being treated. Surplus ink is taken back to thereceptacle by means of the rolls l6 and it. A gage 32 is adjustablymounted upon the feed-roll bracket 21. There is also provided a forkedmember 34 (Fig. 1) which may be seen more clearly from Figs. 4 and 8.The forked end of this member is adjustably received in a groove in ashaft 48 for the feed roll and is therefore arra'nged to differentlyposition the feed roll with respect to the applying roll 20, as will belater described.

The actual work-engaging portion 40 of the applying roll 28 is formed asa readily removable disk clamped between smaller disks. Thisremovability permits the portion 40 to be changed as required to coatsole margins with bands of different widths. Thus, the portion 40constitutes a projecting annulus having a peripheral surface and alateral surface. For'all general purposes four roll parts 45 of widthsvarying from threeeighths to three-sixteenths of an inch will suffice.The part 45 indicated in the drawings represents a width of one-quarterinch, while a single transferring roll it of say one-half inch in widthmay be used to transfer ink to any of such widths of applying roll,being in each case wider than the annulus 49. The gage 32 willordinarily be adjusted in a direction substantially parallel with theaxis of the applying roll 20 to bring its end guiding surfaceimmediately in line with the inner face of the applying roll part 40.When a piece of work is to be inserted between the feed roll 22 or 52and the applying roll, the bracket 21 may be lowered against the tensionof the spring by means of a treadle or the equivalent (not shown). Ifthe work to be coated has a marginal portion of the same thickness asthe mid portion or" a sole such as in the case of comparatively thinsoles S *used in slippers, the feed roll 22 may take the form shown inFig. 2 in which the frusto-conical work-supporting portion 42 iscomparatively wide and only slightly tapered. Preferably thefrusto-conioal portion 42 is secured in contact with the end of a thin,disk-like portion 44 which is fixed to the shaft 48, and the rollportion 42 is held in position thereon by means of a screw 46 entering atapped hole in the shaft which is situated wholly within the end face ofthe disk 44. When the roll section 42 is removed, the end face of thedisk 44 is smooth and unobstructed. If it is desired to coat soles whichhave beveled margins, then the'section 42 may be removed and replaced bya narrow section 50 (Fig. 3) of sharper bevel. With a roll such as thatshown in Fig. 3, the operator may, when necessary, tilt a sole S havinga beveled margin so that the inclined marginal surface can be inkedequally as well as another portion of the margin of the sole which isdifferently beveled or is unbeveled. When the peripheral edge of a soleis to be inked, the arrangement shown in Fig. 4 may be employed. Therethe frusto-conical portion of the feed roll has been removed and thedisk-like portion 44 is employed not only to guide the sole S as itsperiphery is presented to the applying roll 40, but also to assist infeeding the sole past the applying roll. When this operation is to beperformed, the shaft 48 will preferably be displaced axially, and heldthere by the forked member 34, to bring the disk 44 slightly under theapplying portion 40. The work gage in this arrangement will have beenadjusted to a retracted position. The rotation of the disk 44 will befound to aid the operator in turning the sole as its toe and heelportions are being inked.

Instead of substituting different feed roll portions, as suggested inFigs. 2 and 3, it may be found desirable to employ a feed roll 52 (Fig.5) which has a cylindrical portion and a frustoconical portion and isheld upon the shaft 48 by meansof a screw 54 the head of which lieswithin a counterbore in the end of the roll so as to leave the endsurface 56 free of any projection. The cylindrical portion has a line ofcontact with the Work which is parallel to the line of contact of theapplying roll portion 40 therewith, while the line of contact of thefrusto-conical portion with the work lies at an acute angle with thesimilar line on the applying roll. This feed roll 52 will be positionedby adjusting the shaft 48 axially to bring the roll into the positionshown in full lines when the beveled margin of a sole is to be inked andheld there by a member 34, as in Fig. 1. On the other hand, it may beadjusted to position a (shown in dotted lines) when the margin of a soleof uniform thickness is to be coated. If it is desired to employ thisform of roll for edge inking, it will be moved into position b (shown indash lines) where the end face of the roll will serve for supporting andguiding the sole in exactly the same manner as is illustrated in Fig. 4.Preferably in this sort of work the bracket 21 will be raised so thatthe edge of the face 56 is brought closer to the under side of theapplying portion 40, thereby to give guiding support to the side face ofthe sole close to its edge as the edge is being inked.

It is required sometimes to ink the edges of soles that are not exactlyperpendicular to the side surfaces of the soles. Such edges often arefound upon soles which have been merely cut out by a press knife andhave not been subjected to a rounding operation. More reliable inking ofsuch edges can be obtained by employing an inking roll 58 of the formshown in Figs. 6 and 7, in which a mid portion 60 of rubber or suitableyielding material is housed between two metallic disks 62. When such aninking roll is used, it is convenient to guide the work against a rigidedge gage 64 which has an end guiding portion at right angles to a bodyportion which is held upon the machine frame by a screw passed throughan adjusting slot 66 so as to be adjustable in a direc-. tion parallelto the inking roll shaft.

The upper edge of the gage 54 is preferably concavely curved, as shownin Fig. 6, so as closely to hug without contacting with the lower partof the periphery of the inking roll 58. A guiding surface for the soleedge close to the point of application of the ink is thus obtained.Further, when a gage such as 64 is employed, the supporting roll shaft48 used for sole margin inking will be retracted behind the gage, asindicated in Fig. '7. In inking sole edges with the roll and gage ofFigs. 6 and 7, a sole S will be held flat against the gage 64 andtraversed by the operator in the same manner as with the disk 44 abovedescribed with reference to Fig. 4.

In Figv 8 there is shown an alternative arrangement which may beemployed for sole edge inking. With this arrangement, however, a smallwidth, about one sixteenth of an inch, of the sole margin will be inkedsimultaneously with the sole edge. In the arrangement of Fig. 8 theapplication of ink is performed by a roll H mounted on the shaft 48which, in the constructions of Figs. 1 to 3, carries a work-supportingor feed roll 52 or 22. As above indicated, the bracket 21 which carriesthe shaft 48 is vertically adjustable by the hand wheel 30 acting on thestop bolt 28, thus permitting an exact adjustment of the separationbetween the roll H and the roll portion 40.

The applying roll II in this instance comprises a yielding portion 12which, owing to the ability for Vertical adjustment of the shaft 48, maybe of more yielding material than is possible with the portion 60 of theapplying roll 58 of Fig. 7. 75

The portion 12 is clamped between an outer disk 14 and an inner disk 76in the same way as the work engaging annular portion or disk 40 isclamped between disks of the applying roll 20 of Figs. 2 to 5. In thiscase however the inner disk 16 is of slightly larger diameter than theportion 72. Ink is delivered to this roll by the roll portion 40, whichnow serves as a delivery roll portion, fed by rolls l6 and I8 as is theapplying roll portion 40 of Figs. 1 to 4. That portion of the disk 16which extends beyond the yielding portion is preferably relieved orbacked off slightly so that its surface is not exactly parallel to thelateral surface of the roll portion 40. This allows a small quantity ofink to collect in the angle between the parts 40 and 16 as the rollsrotate and thus to be conveyed by the part 16 to the extreme margin of asole S which is traversed by the operator with its edge against theunder side of the part 72. In order that the gap between the parts 40and 16 may be adjusted accurately to suit inks of differing viscosities,the shaft 48 in this case is held for axial adjustment on the bracket 27by the forked member 34 which is mounted by a screw 88 upon the bracket21. The screw 80 conveniently also holds a work gage 18 which is similarto the gage 64 above described and acts to aid the operator inpositioning a sole with its edge and margin correctly to contact withthe part 12 and the lateral face of the part 16.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a coating machine, a receptacle, a transfer roll receiving coatingmaterial therefrom, means for controlling the quantity of materialthereon, a fluid-delivering roll having a rigid projecting annulusprovided with a peripheral surface and an adjacent lateral surface, saidtransfer roll cooperating with said annulus to deliver coating materialthereto, and an applying roll having a peripheral surface receivingcoating material from the periphery of said projecting annulus andhaving a. projecting flange the lateral surface of which cooperates withthe lateral surface of said annulus to receive coating materialtherefrom.

2. In a coating machine, a fluid-delivering roll having a peripheralsurface and a lateral surface, means for supplying coating material tosaid delivering roll, and an applying roll having a peripheral surfacereceiving coating material from the periphery of said delivering rolland having a projecting flange the lateral surface of which cooperateswith the lateral surface of said delivering roll to receive coatingmaterial therefrom, said flange being relieved to permit theaccumulation of coating material between the lateral surface of thedelivering roll and the flange of the applying roll for application bythe latter to the margin of the work.

3. In a coating machine, a fluid-delivering roll having a peripheralsurface and a lateral surface, means for supplying coating material tosaid delivering roll, an applying roll having a peripheral surfacereceiving coating material from the periphery of said delivering rolland having a projecting flange the lateral surface of which operateswith the lateral surface of said delivering roll to receive coatingmaterial therefrom, and means for adjusting said applying roll axiallythereby to vary the relation of the lateral surfaces of the supplyingroll and the applying roll.

4. In a coating machine, a fluid-delivering roll having a peripheralsurface and a lateral surface, means for supplying coating material tosaid delivering roll, an applying roll having a peripheral surfacereceiving coating material from the periphery of said delivering rolland having a projecting flange the lateral surface of which cooperateswith the lateral surface of said delivering roll to receive coatingmaterial therefrom, means for supporting a piece of work so that theedge surface may be coated by the periphery of the applying roll and themarginal surface thereof coated by said flange, and means for varyingthe position of the applying roll both axially and in a direction towardand away from the supplying roll thereby to control the passage ofcoating material between said rolls.

5. In a coating machine, a fluid-delivering roll having a rigidprojecting annulus providing a.

peripheral surface and an adjacent lateral surface, a. roll wider thansaid annulus for supplying coating material to the annulus of saiddelivering roll, and an applying roll having a yielding peripheralsurface receiving coating material from the periphery of said deliveringroll and having a rigid projecting flange the lateral surface of whichcooperates with the lateral surface of said annulus to receive coatingmaterial therefrom whereby a piece of work may be presented to theapplying roll so that the edge surface may be coated by the peripherythereof and the marginal surface coated by said flange.

6. In a coating machine, a fluid-delivering roll having a peripheralsurface and a lateral surface, means for supplying coating material tosaid delivering roll, and an applying roll having a yielding peripheralsurface receiving coating material from the periphery of said deliveringroll and having a projecting rigid flange the lateral surface of whichcooperates with the lateral surface of said delivering roll to receivecoating material therefrom, said flange being relieved to permit theaccumulation of coating material for application by said flange to asurface substan tially normal to that coated by the yielding peripheralsurface.

'7. In a coating machine, a driven coating delivering roll, a coatingtransferring roll, a coating pick-up roll and a doctor roll all of whichrolls are driven in the same direction, said first three rools beingrotatable about fixed centers,

JOHN HENRY BROWN.

